Invention Grant
- Patent Title: Imaging circuits and method
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Application No.: US15072836Application Date: 2016-03-17
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Publication No.: US09699395B1Publication Date: 2017-07-04
- Inventor: Christian M. Boemler
- Applicant: RAYTHEON COMPANY
- Applicant Address: US MA Waltham
- Assignee: RAYTHEON COMPANY
- Current Assignee: RAYTHEON COMPANY
- Current Assignee Address: US MA Waltham
- Agency: Lando & Anastasi, LLP
- Main IPC: H04N5/217
- IPC: H04N5/217 ; H04N5/228 ; H04N5/357 ; H04N5/363 ; H04N5/378

Abstract:
Imaging circuits and an imaging method are provided. One example of an imaging circuit includes a transimpedance amplifier circuit including an amplifier and a feedback capacitor coupled in a feedback path between an output of the amplifier and an inverting input of the amplifier, a correlated double sampling capacitor, a first switch selectively coupled between a first terminal of the correlated double sampling capacitor and the output of the amplifier along a first path, a second switch selectively coupled between a second terminal of the correlated double sampling capacitor and the output of the amplifier along a second path, the second switch positioned to couple the correlated double sampling capacitor into the feedback path in series with the feedback capacitor when activated, and a sample-hold capacitor coupled via a sample-hold switch to the output of the amplifier.
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